diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-08-20 21:20:29 +0900 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-10-23 09:24:33 +0900 |
| commit | 0e14a3595bddedfb27b51a6b0a29b5173aa2511a (patch) | |
| tree | ec1e831c77a7de04315871e687082bb9230a17d7 | |
| parent | 6c43f41000312fefa482c3bfdd97e7f81d6be0ec (diff) | |
nilfs2: use iget5_locked to get inode
This uses iget5_locked instead of iget_locked so that gc cache can
look up inodes with an inode number and an optional checkpoint number.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
| -rw-r--r-- | fs/nilfs2/inode.c | 37 | ||||
| -rw-r--r-- | fs/nilfs2/super.c | 1 |
2 files changed, 35 insertions, 3 deletions
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index f1750caa362..6e9df85b582 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -34,6 +34,11 @@ #include "cpfile.h" #include "ifile.h" +struct nilfs_iget_args { + u64 ino; + __u64 cno; + int for_gc; +}; /** * nilfs_get_block() - get a file block on the filesystem (callback function) @@ -320,7 +325,6 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode) /* ii->i_file_acl = 0; */ /* ii->i_dir_acl = 0; */ ii->i_dir_start_lookup = 0; - ii->i_cno = 0; nilfs_set_inode_flags(inode); spin_lock(&sbi->s_next_gen_lock); inode->i_generation = sbi->s_next_generation++; @@ -410,7 +414,6 @@ int nilfs_read_inode_common(struct inode *inode, 0 : le32_to_cpu(raw_inode->i_dir_acl); #endif ii->i_dir_start_lookup = 0; - ii->i_cno = 0; inode->i_generation = le32_to_cpu(raw_inode->i_generation); if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || @@ -476,12 +479,40 @@ static int __nilfs_read_inode(struct super_block *sb, unsigned long ino, return err; } +static int nilfs_iget_test(struct inode *inode, void *opaque) +{ + struct nilfs_iget_args *args = opaque; + struct nilfs_inode_info *ii; + + if (args->ino != inode->i_ino) + return 0; + + ii = NILFS_I(inode); + if (!test_bit(NILFS_I_GCINODE, &ii->i_state)) + return !args->for_gc; + + return args->for_gc && args->cno == ii->i_cno; +} + +static int nilfs_iget_set(struct inode *inode, void *opaque) +{ + struct nilfs_iget_args *args = opaque; + + inode->i_ino = args->ino; + if (args->for_gc) { + NILFS_I(inode)->i_state = 1 << NILFS_I_GCINODE; + NILFS_I(inode)->i_cno = args->cno; + } + return 0; +} + struct inode *nilfs_iget(struct super_block *sb, unsigned long ino) { + struct nilfs_iget_args args = { .ino = ino, .cno = 0, .for_gc = 0 }; struct inode *inode; int err; - inode = iget_locked(sb, ino); + inode = iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args); if (unlikely(!inode)) return ERR_PTR(-ENOMEM); if (!(inode->i_state & I_NEW)) diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 51576b4dbf7..f3a00a3b2a0 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -155,6 +155,7 @@ struct inode *nilfs_alloc_inode_common(struct the_nilfs *nilfs) return NULL; ii->i_bh = NULL; ii->i_state = 0; + ii->i_cno = 0; ii->vfs_inode.i_version = 1; nilfs_btnode_cache_init(&ii->i_btnode_cache, nilfs->ns_bdi); return &ii->vfs_inode; |